3.In the northern area,the main tectonic line is NE direction,which is identical with the tectonic line in North China fault block region,the shallow tectonic presents fault uprise alternating with fault depression along the direction of regional tectonic line,and the Moho shows upwarping alternating with depression.
认为北部地区构造线主体为北东向 ,与华北断块区的构造线一致 ,浅层构造沿区域构造线呈断隆和断陷相间展布 ,深部莫霍界面隆起凹陷也相间排列。